Stored property type 'CGPoint' does not conform to protocol 'Hashable',

Question

Imagine a card board. All cards are on a view I call CardBoard.

All cards are on an array:

var cards:[Card]

Every card has its own position.

This is Card

struct Card: View {
  let id = UUID()
  
  var name:String
  var code:String
  var filename:String
  var position = CGPoint(x: 200, y: 250)
  
  
  init(name:String, code:String, filename:String) {
    self.name = name
    self.code = code
    self.filename = filename
  }
  
  
  var body: some View {
    Image(filename)
      .position(position)
  }
}

Now I want to draw them on the screen.

var body: some View {
  ZStack {
    ForEach(cards, id:\.self) {card in
       
    }
  }
}

when I try this, Xcode tells me

Generic struct 'ForEach' requires that 'Card' conform to 'Hashable'

when I add Hashable to Card

struct Card: View, Hashable {

1. Stored property type 'CGPoint' does not conform to protocol 'Hashable', preventing synthesized conformance of 'Card' to 'Hashable'

any ideas?

Answer 1

THANKS EVERYBODY, but because is not good to post a link as a solution, I am posting here:

The solution is to make the view Hashable and add this:

extension CGPoint : Hashable {
  public func hash(into hasher: inout Hasher) {
    hasher.combine(x)
    hasher.combine(y)
  }
}